Battery cell pole piece surface defect identification device

Abstract

The utility model relates to the technical field of battery cell pole piece detection devices, in particular to a battery cell pole piece surface defect identification device which comprises a supporting frame, a conveying belt is arranged on the supporting frame, an identification station is arranged in the middle of the supporting frame, and rectangular holes are formed in side edge plate bodies of the supporting frame located at the two ends of the identification station. A side edge plate is fixedly installed on a plate body on one side of the supporting frame, an air cylinder is arranged on the side edge plate, a baffle is fixedly installed at the tail end of a telescopic shaft of the air cylinder, an L-shaped plate is fixedly installed at the end of the baffle, and the L-shaped plate and the baffle penetrate through a rectangular hole and are in sliding connection with the rectangular hole; an image acquisition module is arranged on the U-shaped frame, a control module is fixedly installed on a plate body on one side of the supporting frame, an image processing module is arranged on one side of the control module, and a display module is arranged on the surface of the control module. The device is convenient to identify, detect and reject, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell pole piece detection devices, in particular to a battery cell pole piece surface defect recognition device. Background Art

[0002] With the rapid development of new energy technologies, lithium batteries, as an important energy storage device, are widely used in electric vehicles, smart phones and other electronic devices. As the core component of lithium batteries, the surface quality of battery cell pole pieces directly affects the performance and life of the battery. In the manufacturing process of battery cell pole pieces, due to factors such as materials and processes, scratches, pits, bubbles and other defects are prone to appear on the surface of the pole pieces. These defects not only affect the performance of the battery, but may also cause safety hazards. In order to ensure that the quality of the pole pieces meets the requirements, it is usually necessary to inspect the surface of the pole pieces. When performing inspection operations, manual inspection and traditional machine vision inspection methods are mainly used. Manual inspection relies on the operator's experience and vision, and has slow inspection speed, low efficiency, and is easily affected by human factors, resulting in instability and inconsistency of the inspection results. Machine vision inspection methods can realize automated inspection and have the advantage of efficient inspection.

[0003] The battery cell pole piece surface defect recognition devices on the market generally first collect, process and identify the pole piece surface image. Through image processing technology and algorithms, they have the advantage of accurately identifying various defects on the surface of the battery cell pole piece. However, although this type of battery cell pole piece surface defect recognition device can complete the surface defect recognition and detection operation when in use, it cannot promptly remove the battery cell pole piece after identifying the defective battery cell pole piece. At this time, manual removal and machine reset are still required. This process is relatively time-consuming and inconvenient for users. In view of this, we propose a battery cell pole piece surface defect recognition device. Utility Model Content

[0004] The purpose of the utility model is to provide a device for identifying surface defects of a battery cell pole piece, so as to solve the defects mentioned in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for identifying surface defects of battery cell pole pieces comprises a support frame, a conveyor belt is arranged on the support frame, an identification station is arranged at the middle part of the support frame, rectangular holes are arranged on the side plates of the support frame at both ends of the identification station, a side plate is fixedly mounted on one side plate of the support frame, a cylinder is arranged on the side plate, a baffle is fixedly mounted on the end of the telescopic shaft of the cylinder, an L-shaped plate is fixedly mounted on the end of the baffle, the L-shaped plate and the baffle pass through the rectangular hole and are slidably connected with the rectangular hole, a U-shaped frame is fixedly mounted on the top surface of the support frame, an image acquisition module is arranged on the U-shaped frame, and the image acquisition module is located directly above the identification station.

[0007] Preferably, a plurality of support legs arranged in a matrix are fixedly mounted on the bottom surface of the support frame, and the support legs are used for supporting operation.

[0008] Preferably, a rectangular sleeve is fixedly installed on the top plate of the U-shaped frame, a vertical rod is fixedly installed on the top surface of the image acquisition module, the vertical rod passes through the rectangular sleeve and is slidably connected to the rectangular sleeve, and the vertical rod and the rectangular sleeve are fixed by fastening bolts.

[0009] Preferably, the rectangular sleeve is provided with a bolt hole, the vertical rod is provided with a plurality of through holes linearly arranged at equal intervals along the height direction of the vertical rod, and the fastening bolt passes through the bolt hole and the corresponding through hole.

[0010] Preferably, the sizes of the L-shaped plate and the baffle are both adapted to the size of the rectangular hole, and the cross section of the L-shaped plate is L-shaped.

[0011] Preferably, the length of the baffle plate and the length of the L-shaped plate are equal to the width of the support frame for material blocking operation.

[0012] Preferably, a control module is fixedly mounted on a side plate of the support frame, an image processing module is arranged on one side of the control module, and a display module is arranged on the surface of the control module.

[0013] Preferably, the vertical rod is a hollow structure for reducing weight.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model conveys the battery cell pole piece through the provided conveyor belt. After conveying to the identification station, the image acquisition module is used to perform image acquisition operation. After a defective battery cell pole piece is found, the cylinder works, and the telescopic shaft thereon extends to drive the baffle plate and the L-shaped plate to move forward, so that the defective battery cell pole piece blocked on the front side of the L-shaped plate is pushed out from the rectangular hole, and the unloading operation of the defective battery cell pole piece is completed. It is convenient to use and can achieve the effect of being able to remove the defective battery cell pole piece.

[0016] 2. The utility model adjusts the height of the image acquisition module by setting a rectangular sleeve and a vertical rod and utilizing the up and down sliding of the vertical rod. After the height is adjusted, it can be fixed with a fastening bolt, thereby achieving the effect that the height of the image acquisition module can be adjusted in a portable manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0020] Figure 4 This is the second schematic diagram of the partial structure of the utility model;

[0021] Figure 5 This is a system module block diagram of the utility model.

[0022] The meaning of each number in the figure is:

[0023] 1. Support frame; 10. Support leg; 11. Conveyor belt; 12. Identification station; 13. Rectangular hole; 14. U-shaped frame; 15. Rectangular sleeve; 151. Bolt hole; 16. Side plate;

[0024] 2. Image acquisition module; 20. Vertical rod; 21. Through hole; 22. Fastening bolt;

[0025] 3. Control module; 30. Image processing module; 31. Display module;

[0026] 4. Cylinder; 40. Baffle; 41. L-shaped plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides a technical solution: a device for identifying surface defects of a cell electrode sheet, comprising a support frame 1, a conveyor belt 11 is arranged on the support frame 1, the conveyor belt 11 is used for conveying the cell electrode sheet, an identification station 12 is arranged at the middle part of the support frame 1, rectangular holes 13 are arranged on the side plates of the support frame 1 at both ends of the identification station 12, a side plate 16 is fixedly installed on one side plate of the support frame 1, a cylinder 4 is arranged on the side plate 16, and a stopper is fixedly installed at the end of the telescopic shaft of the cylinder 4 Plate 40, an L-shaped plate 41 is fixedly installed at the end of the baffle 40, the L-shaped plate 41 and the baffle 40 pass through the rectangular hole 13 and are slidably connected to the rectangular hole 13, the sizes of the L-shaped plate 41 and the baffle 40 are adapted to the size of the rectangular hole 13, and the cross-section of the L-shaped plate 41 is L-shaped, so that after the battery cell pole pieces transported on the conveyor belt 11 move to the front side of the L-shaped plate 41, the detection operation can be performed on the front side of the L-shaped plate 41. After the detection is completed, the L-shaped plate 41 retreats, and the battery cell pole pieces can be transported forward normally.

[0029] In this embodiment, a U-shaped frame 14 is fixedly installed on the top surface of the support frame 1, and an image acquisition module 2 is arranged on the U-shaped frame 14. The image acquisition module 2 is located directly above the recognition station 12. A rectangular sleeve 15 is fixedly installed on the top plate of the U-shaped frame 14, and a vertical rod 20 is fixedly installed on the top surface of the image acquisition module 2. The vertical rod 20 passes through the rectangular sleeve 15 and is slidably connected with the rectangular sleeve 15. The vertical rod 20 and the rectangular sleeve 15 are fixed by fastening bolts 22.

[0030] Specifically, a bolt hole 151 is provided on the rectangular sleeve 15, and a plurality of through holes 21 are provided on the vertical rod 20 and are linearly and evenly spaced along the height direction of the vertical rod 20. The fastening bolt 22 passes through the bolt hole 151 and the corresponding through hole 21 to achieve a fixing operation. At the same time, by pulling out the fastening bolt 22, the vertical rod 20 can be slid up and down to adjust the height of the image acquisition module 2, which is convenient to use.

[0031] Furthermore, a plurality of support legs 10 arranged in a matrix are fixedly mounted on the bottom surface of the support frame 1 , and the support legs 10 are used for supporting operations.

[0032] In addition, the length of the baffle plate 40 and the length of the L-shaped plate 41 are both equal to the width of the support frame 1 for material blocking operation.

[0033] It is worth noting that the vertical rod 20 is a hollow structure for reducing weight.

[0034] It is worth noting that a control module 3 is fixedly installed on one side plate of the support frame 1, an image processing module 30 is arranged on one side of the control module 3, a display module 31 is arranged on the surface of the control module 3, and the image acquisition module 2 is used to collect image information of the surface of the battery cell pole piece. The image acquisition module 2 includes components such as a high-definition camera, a light source, and a lens. The high-definition camera is used to capture images of the surface of the battery cell pole piece, and the light source and the lens are used to provide suitable lighting and imaging conditions; the image processing module 30 is used to pre-process and identify defects of the collected image information, and the pre-processing includes operations such as denoising and enhancing the image to make the image features more obvious; defect identification is to determine whether there are defects on the surface of the battery cell pole piece and determine the type and location of the defect by analyzing the feature information in the image; the control module 3 is used to control the operation of the entire device, including controlling the working state of the image processing module 30, receiving the processing results of the image processing module 30 and outputting corresponding control signals, etc.; the display module 31 is used to display the processing results, including information such as the type and location of the defect, so that users can observe and record it conveniently.

[0035] Finally, it should be noted that the control module 3, image processing module 30, display module 31, image acquisition module 2 and cylinder 4 involved in the utility model are all universal standard parts or parts known to technical personnel in this field, and their structures and principles are all known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the utility model. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in the field.

[0036] When the battery cell electrode piece surface defect identification device of the utility model is in use, after the battery cell electrode piece is placed on the conveyor belt 11 and is conveyed to the identification station 12 by the conveyor belt 11, at this time, the battery cell electrode piece is located at the front side of the L-shaped plate 41, and the image acquisition module 2 normally acquires the battery cell electrode piece, and the image processing module 30 receives the picture sent by the image acquisition module 2 and performs corresponding processing. If there is no defect on the surface of the battery cell electrode piece, at this time, the cylinder 4 works, and the telescopic shaft thereon shortens and drives the L-shaped plate 41 to move backward. At this time, the L-shaped plate 41 no longer blocks the front side of the battery cell electrode piece on the conveyor belt 11, and the conveyor belt 11 rotates to realize the forward conveyance of the battery cell electrode piece that meets the quality requirements;

[0037] If defects are detected on the surface of the battery cell electrode, the control module 3 controls the cylinder 4 to work, and the telescopic shaft thereon extends to drive the L-shaped plate 41 and the baffle 40 to move forward. The L-shaped plate 41 and the baffle 40 push the battery cell electrode to the rectangular hole 13 and fall out of the rectangular hole 13, completing the removal operation of the defective electrode for easy use.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for identifying surface defects of a battery cell electrode, comprising a support frame (1), characterized in that: The support frame (1) is provided with a conveyor belt (11), an identification station (12) is provided at the middle part of the support frame (1), and rectangular holes (13) are provided on the side plates of the support frame (1) at both ends of the identification station (12). A side plate (16) is fixedly mounted on one side plate of the support frame (1), and a cylinder (4) is provided on the side plate (16). A baffle (40) is fixedly mounted on the end of the telescopic shaft of the cylinder (4), and an L-shaped plate (41) is fixedly mounted on the end of the baffle (40). The L-shaped plate (41) and the baffle (40) pass through the rectangular hole (13) and are slidably connected to the rectangular hole (13). A U-shaped frame (14) is fixedly mounted on the top surface of the support frame (1), and an image acquisition module (2) is provided on the U-shaped frame (14). The image acquisition module (2) is located directly above the identification station (12).

2. The battery cell electrode surface defect identification device according to claim 1, characterized in that: A plurality of support legs (10) arranged in a matrix are fixedly mounted on the bottom surface of the support frame (1), and the support legs (10) are used for supporting operations.

3. The battery cell electrode surface defect identification device according to claim 1, characterized in that: A rectangular sleeve (15) is fixedly mounted on the top plate of the U-shaped frame (14); a vertical rod (20) is fixedly mounted on the top surface of the image acquisition module (2); the vertical rod (20) passes through the rectangular sleeve (15) and is slidably connected to the rectangular sleeve (15); the vertical rod (20) and the rectangular sleeve (15) are fixed by fastening bolts (22).

4. The battery cell electrode surface defect identification device according to claim 3, characterized in that: The rectangular sleeve (15) is provided with a bolt hole (151), the vertical rod (20) is provided with a plurality of through holes (21) linearly arranged at equal intervals along the height direction of the vertical rod (20), and the fastening bolt (22) passes through the bolt hole (151) and the corresponding through hole (21).

5. The battery cell electrode surface defect identification device according to claim 1, characterized in that: The sizes of the L-shaped plate (41) and the baffle plate (40) are both adapted to the sizes of the rectangular hole (13), and the cross section of the L-shaped plate (41) is L-shaped.

6. The battery cell electrode surface defect identification device according to claim 5, characterized in that: The length of the baffle plate (40) and the length of the L-shaped plate (41) are both equal to the width of the support frame (1) and are used for material blocking operation.

7. The battery cell electrode surface defect identification device according to claim 1, characterized in that: A control module (3) is fixedly mounted on a side plate of the support frame (1), an image processing module (30) is arranged on one side of the control module (3), and a display module (31) is arranged on the surface of the control module (3).

8. The battery cell electrode surface defect identification device according to claim 3, characterized in that: The vertical rod (20) is a hollow structure for reducing weight.

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